▎ 摘　　要

NOVELTY - Preparing graphene sheet/carbon nanotube array material involves mixing layered material with particle size of 4-8 mm with distilled water to form suspension, preparing precursor of active component of catalyst into homogeneous solution, pouring layered material suspension during stirring, filtering, drying, and calcining to obtain layered catalyst. The prepared layered catalyst is uniformly spread at the bottom of ceramic boat, and catalyst is placed in the center of heating area of quartz tube. USE - Method for preparing graphene sheet/carbon nano-tube composite array material used in the field of functional material. ADVANTAGE - The method has simple preparation technique, low energy consumption, high product purity, and produced in large scale. The prepared graphene sheet/carbon nano-tube has the advantages of regular growth, high quality, and large yield. The prepared graphene sheet/carbon nano-tube has excellent ion exchange performance and layered structure, and used as a good catalyst carrier and a composite material growth substrate. The carbon nano-composite material is directly used for physical characteristic detection and applied to the energy related product. DETAILED DESCRIPTION - Preparing graphene sheet/carbon nanotube array material involves mixing layered material with particle size of 4-8 mm with distilled water to form suspension, preparing precursor of active component of catalyst into homogeneous solution, pouring layered material suspension during stirring, filtering, drying, and calcining to obtain layered catalyst. The prepared layered catalyst is uniformly spread at the bottom of ceramic boat, and catalyst is placed in the center of heating area of quartz tube. The argon is introduced to discharge air in reaction device before the reaction, argon is closed after air is exhausted, vacuum pump is opened to enable pressure in tube to be less than 30 pascal (Pa), hydrogen is introduced, reactor is heated in a hydrogen atmosphere, plasma generator and setting radio frequency power is opened after the reaction temperature is reached, and carbon source gas is introduced to carry out the reaction, where flow rate of carbon source gas is 10-60 standard cubic centimeters per minute (sccm), and flow rate of hydrogen is 5-30 sccm. The plasma generator and carbon source gas are closed, and graphene sheets/carbon nanotube arrays are obtained after cooling to room temperature in hydrogen atmosphere. The layered material is selected from vermiculite, mica, kaolin or montmorillonite. The active component of catalyst is selected from iron, cobalt, nickel, molybdenum, copper or rare earth elements. The carbon source gas is selected from methane, ethane, ethylene, acetylene, propane, propylene or toluene, where reaction temperature is set between 600-1000degrees Celsius, plasma radio frequency power is set between 100-500 watts (W), and reaction time is 10-60 minutes.